Hollywood wildman Charlie Sheen tried to buy a gun during a drink and drugs bender in Scotland, we can reveal today.

Sheen - who rakes in £1million per episode on hit US sitcom Two And A Half Men - is just out of rehab after being arrested for going berserk in New York's Plaza hotel.

Porn star Christina Walsh was found cowering naked in the bathroom after rampaging Sheen accused her of stealing a £94,000 Patek Phillipe watch. Sheen checked out of rehab last week and was last seen partying with six beauties in a Belize bolthole.

The revelations came as no surprise to Billy McGeachin, who accompanied Sheen on a wild night out in Glasgow - when he begged him to find a gun.

Billy, now 43, said he met Sheen when the star approached his girlfriend Lorraine Brown on a Glasgow street trying to score cocaine.

McGeachin and Lorraine, who died in 2002, ripped him offby selling him amphetamines mixed with sugar.

The pair travelled with Platoon star Sheen - who was filming a movie called Postmortem in Glasgow- and his minder to the tough Easterhouse estate in search of drugs.

During the chaotic night out in 1997, McGeachin claims: He had to stop a house full of thugs high on drugs from taking the Hollywood superstar hostage.

Sheen begged for a gun for protection.

The actor claimed he'd been snorting cocaine in a nightclub with Rangers hero Paul Gascoigne.

McGeachin said: "I phoned a dealer in Easterhouse and he told me it wouldn't be a problem. But I stupidly told him who the customer was and that set offthe jungle drums.

"When Lorraine and I went up to the house we discovered that there was no drugs - just a house full of nutcases who were already high.

"They wanted to get Charlie out the taxi and tie him up.

"Lorraine and I just wanted to earn a few quid. We both had a drug problem and didn't give a damn who Charlie Sheen was - we just wanted the cash.

"It was then we decided to mix sugar and speed and pretend it was cocaine.

"We acted fast because the guys in the house were building up the courage to go down and kidnap him.

"No one in the room was thinking straight. Every single one of those guys had been in prison before and had been taking drugs.

"If one of them had made the first move then the rest would've followed. We just ran down and jumped back in the taxi and got out of there."

Sheen handed McGeachin$2700 and £380 in sterling for the fake white powder, which was placed in the bodyguard's pocket. McGeachin added: "Charlie Sheen seemed like a decent guy - but too trusting.

"He told me that he'd already been ripped off in three drug deals that day and was fed up.

"He said he'd been in Archaos partying with Gazza and some other players.

"At one point , Charlie grabbed my hand and made the shape of a gun with two of my fingers.

"He asked me to get him a gun. At first I thought he was joking but he made it clear to me he was serious.

"He said he'd feel safer while he was in Glasgow and was fed up with guys taking the p***.

"His bodyguard was sitting there shaking his head, I got the feeling that he'd seen all the crazy behaviour before."

McGeachin, who lives in Easterhouse, claims he's kicked his heroin habit and is a now fulltime carer for his elderly father. And he says he hopes Sheen also manages to beat his demons.

He said: "I lost a lot of friends and the woman I loved through drugs and not a day goes by where I don't regret things that happened.

"I hope Charlie gets his act together before his life ends in disaster."